Designed for bright conditions, Oakley Flak Jacket XLJ Sunglasses with matte black frames and black iridium lenses offer protection from impacts with stylish good looks. Made of Oakley's proprietary plutonite material, these High Definition Optics lenses have a collection of built-in technologies that meet or exceed the testing requirements of the American National Standards Institute for optical clarity, visual fidelity, and provide 100% protection from UV rays. The earsocks and nosepads are made of Oakley's hydrophilic unbotanium to stay in place even if you perspire, and the o-matter stress-resistant frame material is lightweight and durable.